Free
JSON ⇄ CSV Converter
Move data between CSV and JSON, both directions, without a spreadsheet mangling it.
JSON out
Runs entirely in your browser. Your data is never uploaded.
Why not just split on commas?
Because real CSVs contain commas inside quoted fields — "Smith, John" is one field, not two — and quotes escaped as "", and even newlines inside a quoted cell. This converter follows those rules, so the row count comes out right on the exports that break a naive split.
Ragged JSON still converts
When your JSON objects don't all share the same keys, the CSV header becomes the union of every key seen, and missing values are left blank — so a real API response with optional fields still produces a rectangular table.
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